function parse (str){
    let value
    try {
        value=JSON.parse(str)
    }catch{
        value=null
    }
    return value
}
function stringify (str){
    let value
    try {
        value=JSON.stringify(str)
    }catch{
        value=null
    }
    return value
}

export default function useLocalStorage(){
    function setItem(key,value){
        value=stringify(value)
        window.localStorage.setItem(key,value)
    }
    function getItem(key){
        let value=window.localStorage.getItem(key)
        if(value){
            value=parse(value)
        }
        return value
    }
    return {
        setItem,
        getItem
    }
}